Better performance is the main aspect of Raspberry Pi 4; it has a 1.5GHz Quad-Core ARM Cortex-A72 CPU with better VideoCoreVI Graphics. The Pi 4 can display 4K 60fps HEVC videos through a Micro-HDMI port and it can connect to two 4K displays at the same time but with only 30fps refresh rate. It has a 1000Mbps True Gigabit Ethernet and four USB ports, but two of them are USB 3.0 ports with ten times the transfer speed of USB 2.0. In addition, Raspberry Pi 4 uses a new 5V/3A power supply and connects to it through a USB Type C port, which has better durability and can work on both sides.